Heel-breasting machine



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original Fild oct. 11. 1916 Nov. 27 1923.

L. A. CASGRAIN HEEL BREASTING MACHINE origina; Filed oct. 11. 191e l7slneetfsheel 2 /A/ VEN TUR.. D@ yww @HIIIIE' Noir. `27, 1923.

. L. A. CASGRAIN HEEL BREASTING MAGHINE Original Filed Oct. 11, 1916 7ShB'bS-Shee 5 IIII llllllllllllllllllll IIIJ llll llllllllllllllllllllllIJ Nov. 27 1923.

L. A. CASGRAlN HEEL BREASTING MACHINE original Filed oct. 1'1, 191e 7sheets-sheet 4 Nov. 27,19z3. I1,475,793

L. A. CASGRAIN HEEL BREASTING MACHINE origina; Filed oct. 11, 191e i'f-Sheets-Sheet 5- 220 C x 7 mi 208 TM '7 2 lll,

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Nov. 27, 1923.

. L. A. CASGRAIN HEEL BREASTING MACHINE Original Filed Oct. l1, 1916 7Sheets-Sheet 6 VEA/Tm?.

Nov. 27 1923.

3 7 9, .Tv 7 e 5, m u l, m Mm 7 6 E El V mw N@ mw. M Smm Amo 0mm Amm FAIL Lmm hn .l UD .l r o Patented Nov. 27, 1923.

loan-fen fermes grata/air lorries.

Louis A. oAsGRArN, E BEVER-EY, nASsaci-rUsErES, aSSIeNon, :BY MESNEASSIGN- MENTS, To UNITED SHOE Mesnil-IEEE- ceaEcaafrreN, 0E EafrEEsoN,NEW JERSEY,

A CORPORATION OF NEW JERSEY.

HEEL-EEEASTING MACHINE.

Application'meaoctober 11, 1916, seriai No. 125,102. Renewed Nvemeey4|., i921. ysei-iai No. 512,955.

To all fan/10772, t may 'concer/1L.'

Be itknown that I, Louis A. Caso-RAIN.. a citizen of' the United States,residing at Beverly7 inthe county of Essex and State i of Massachusetts`have invented certain lmpiovements in Heel-Breast'ingf Machines, of

which the following` description, in connection `With"theaccompanyingclraivinys, is a speciication, like reference characters on the`lcl1'awi,ngs indicating likeparts in the several a'ures. y

This invention relates to machines for breasting'the heelsiof bootsand'shoes.

The power Vbreasting machines 110W in commercial use are vfor the mostpart `of the type in 'whichthestrollreof the knife is Avariedinaccordanceivith the height of the la"Y and thetthick'ness of4 the soleat the shank. thisstioke being controlled by a stop ivliichiengarresthe'sh'ank ot the'shoe and is connectedavith mechanism for disconnectingtlie kfnifelfrom its operating' .mechanism ivhen thefknife Ahas reachedthe Vshank of thesole at tlie'completion of the heel breast- 'irigioperation. ,y y

r'A;lizli'olighimachihesof this type are extensivelyrand suctcessfullyused therer is in ythe use otthem alvf'avsy'a possibility that the knifearresting"mechanism may f g'et out of adjustment or'becoine Worn. sothatvunder soiiie 'Workingconditionsthe knife mayovertlirovl'fan'd'cause iniury to the Shank or else Ibe stopped beforethe cut is lin ished.

lt has been recognizedthiat a Fixed stop i may be provided for theshoeshank and the lr ite'fgiveii "a constant stroke such that itsLediffefivill reach the .plane ofthe shoe engagifng face of the stop,the shoebeine held iitmly' against the stop during the operation of theknife. .ln :the construction of "suclifn'iacliines it hasbeenfcliiiicult to devise ,haul-:istrip mechanismwhich would not be inthefivay gof the shoedurino; its introducftionfinto and `removal fromthe machine and 'which `ivould accurately and adequately sus- ;'ljalinVtliepi Aure of the shoeagainst it unlrflall Conditions.

4 The "generalobject ofthis invention is to 'providean improved heelbreast-ing; machine jivhichivill' be free fromkthefaults or defects'oflorior' m chinesand lWhich will perform Wtlre'fbre'a'sting operationAin fa l"better, more accurate andv expeditious manner. Morespecifically stated. an object of this invention is to devise neiv andimproved mechanism which kill automatically position the stop relativelyto the shank after the intro-` duction of the shoe into the machine andwill properly locate and hold the stop during the operation. Preferablythe mechanismiwill "also automatically remove the stop yfrom ijiroximityto the shoe before the shoe is removed from the machine.

lllith this object in View, a feature of the y invention consists in a`vertically movable stop, and means for automatically7 bringing the stopinto operative relation as an incident to the movement of the shoe whenbrought into position to be operated upon. herein shownq the stop isarrangeclto be moved by gravity into operative-position and is' heldelevated by means which is arranged to be released by movement of theshoe support toward the machine.

Another feature of the invention consists in the combination with meansfor raisingv the shoe against the stop, of means for holdinnr the stopagainst upward movement which becomes effective automatically tosustainthe pressure of the shoe against the stop. As herein shown, thestop holding means comprises a member which is introduced betiveen thestop and a vertically rigid portion of the machine.v movement of themember beingeifected-preferably by a preiiminary movement of thestarting` treadle before the machine Starts. Preferably the holding`member comprises a Wedge which may be adjusted to vary the effectivethickness of the holding member for varying the vertical position of thestop.

Another feature of the invention consists in means for automaticallyreleasingi the stop after the breasting operation and movin .q it awayfrom the shoe so that it will not interfere with the removal of the shoefrom the machine. As shown herein, the stop holding member .is removedautomatically from above the stop member and the stop is automaticallyconnected to the knife operating; mechanism and lifted away from theshoe. y n

"When heels are breasted in the usualmenner by a knife which moves inthedirection of the height of the heel or, if the heel is attached to ashoe, from the tread face of the heel toward the shank. it is frequentlyfound that the knife does not produce a smooth cut on the heel breastbut that the heel a cstepped7 appearance, the upper edge of each liftprojecting beyond the lorfer edge of the lift above it. This formationof the heel breast is particularly noticeable when leather heels arebeing breasted and is due to the fact that the resistance of the chip tothe passage of the knife increases as the knife approaches the loweredge of the lift, by reason'of the pressure lof the bevel of the knifeedge against the resisting chip which causes the knife to spring or drawin toward the body of the heel.- lVhen the knife passes through a givenlift this pressure is suddenly released and the knife springs out andbegins its cut on the next lift in a plane slightly in front of theplane where the cut on the lift above was finished. In order to finish arough heel breast thus made, considerable scouring is necessary, whereasit is highly desirable that the breast be as smooth as possible when itleaves the breasting machine so that little or no scouring or buflingwill be needed.

Another' object of this invention, therefore, is to provide means forproducing upon the heel a smooth breast face before itleaves thebreasting machine. lith this object in view, anotherl important featureof the invention consists in means for trimming the heel breast, forinstance, by the removal of a thick roughing chip therefrom andautomatic means operating to effect a finishing cut from substantiallythe entire heel breast to eliminate any roughness resulting from theprevious or rough trimming operation. ln the illustrated machine anorganization is shown comprising a reciprocatimibreast- .ing knife,means for operating it repeatedly, and means for effecting relativemovement ofthe knife and heel in the direction of the length of the heelbetween successive operations of the knife. ln the construction hereinshown, the knife has a two stroke cycle, and means is provided formoving theknife rearwardly of the heel a predetermined distance afterthe first stroke and before the second stroke. rl`his constructionenables a roughing cut to be first made by the removal of a thick chipand then a linishing cut by the removal of a thin chip or shaving,Preferal'ily the knife is arranged to reciprocate in the direction ofthe height of the heel, that is, when the heel is attached to a shoe, inthe direction from the ytread face of the heel toward the shank,

and as herein shown the knife carrier is moved relatively to the heelabout a center remote from and preferably below the heel between thestrokes of each cycle.

Since it is aV usual practice to breast the heels of shoes while theshoes are still upon their lasts, it is important to provide mechanismfor upholding a shoe en its last which will accommodate itself to lastsof varying height without special attention upon the part of theoperator and without his making any time-consuming adjustments.Accordingly a feature of the invention consists in an initiallydepressible last support upon which the shoe is yieldingly sustained sothat a last of any height may be located in the machine by depressingthe last and allowing it to rise against the means for positioning theshoe vertically. for example the stop above referred ton with means,preferably becoming effective upon power operation of the machine, forrendering` the support unyielding and applying pressure thereto to holdthe shoe against tie step, As shown, the pressure applying' means actsirrespectively of the height of the last to apply uniform upwardpressure to the last support, the last support being locked in whateververtical position it may be made to assume by introduction of a last ofany height and then having a predetermined upward pressure' appliedthereto.

It is important that the shoe be upheld by relatively light butsubstantial and constant pressure up to the time when the cut of theknife begins in order that the operator may have as much time aspossible to position the shoe .with respect to the positioning deviceswhich determine its relation to the knife, and it is important when theshoe is so positioned and the cut of the knife is about to begin thatthe shoe be upheld substantially rigidly to resist the cutting action ofthe knife. Accordingly, another feature of the invention consists in thecombination with breasting means and a stop against which the shoe islocated, of means for effecting an upward pressure of the shoe againstthe stop and then applying an increased pressure during the breastingoperation. Preferably a preliminary pressure is first applied which, asshown, is constant and then a final pressure of predetermined amount isapplied which is preferably sufficient to sustain the shoe substantiallyrigidly during the operation of the knife, the pressure being, however,sufficiently yielding to prevent excessive pressure upon the shoe orundue strain upon the machine parts. As shown herein the jack post isnormally sustained by a light spring and is backed up at its lower endby a liquid which is controlled by a normally open valve, the valvebeing closed by a spring when the j ack is raised and maintaining aconstant preliminary pressure on the liquid as the jack is raisedagainst the resistance of the shank stop and other positioning devicesuntil the jack approaches the upper limit of its movenient, whereuponadditional or final pres sure is appliedfto the valve to render theliquid support to the jack substantially unyielding. lt Iwill beobserved that, by the features of the invention above explained, a lastof any heightmay be inserted in the machine by' depression of the lastsupport against a light spring. the lastbeingraised and measured whendownward pressure is relieved and its vertical position determined bythe stop. When the machine starts., the last support is raised by meanswhich acts uniformly upon the lastisupport, whatever may 'be theposition it has been made to assume by insertion of the last and henceirrcspectively of the height of the last.

Furthermore, the machine is preferably so adjusted that in'inaking theroughing cut on the heel this first chip will be substan 'ially but notquite severed and means is provided to increase the upward pressure ofthe shoe duringthe second cut, this cut being made with less resist-anceon the part of the heel because of the thinness of the chip and the heelbeing more forcibly upheld, -the knife will cut completely throueh theheel and sever the chip. The sten and'connectinaf parts of the machinewill also yield slightly under the increased pressure and allow theknife therefore to cut little deeper. Another feature of the inventionconsists, accordingly. in the combination of means for removing`successive chips fromthe heel of a shoe. and a substantially fixed stopfor positioning the shoe relatively7 to the limit of the knife stroke,ofvmeans for increasing the pressure of; the shoe against the stopvbetween the removal of the successive chips from the heel. If the knifeupon its first .rcciprocation is allowed to cut through the heel thereis danger that it will slightly mar or scratch the shank of the shoe.which scratch will become more noticeable after another chip is removedby the second operation of. the knife. By the above construcA tion.however. this danger is avoided.

These and other features of the invention will appear more fully fromthe following description when read in connection with the eccomi Layingdrawings and will be pointed .n `the appended claims. ."ig. l is anelevation of the left hand side i of the machine: l

Fi P is a similar view, on an enlarged scale. or the upper portion ofthe machine;

F 3 is a detail in perspective of the wedge member 'for holding the stopagainst upward movement;

Fig. e is a sectional view of part of the stop operating mechanism;

Fig. 5 is a front elevation of the upper portion of the machine;

Fig. 6 is a sectional view of the base portion of the machine taken on aplane extending from front -torear of. the machine g,

Fig. 7 is a' detail, in rear elevation, of the mechanism shown in Fig.6;

F 8 is a sectional view of the base portion oit the machine on a planeextending Vtransversely of the machine;

Fig. 9 is a top plan view of the mechanism tor positioning the heelrelatively t-o the knife;

l() is a side View, partly in section, of th mechanism shown in Fig. 9.i

i li a detail in perspective of isn) slmwn in l1'.;;s. and l0; la. l2 isa plan View, partly in section, of the clutch mechanism and part of thecam the machine; and

is a front View, nartly in section, o. the mechanism shown in Fig.

l of Athe drawings, which is a side the ` ie is indicatedby the numeral2. in 'the base of the 'iframe "s mounted a drive shaft fi which extends'trein front to rear of the machine and is connected to a. power drivenpulley 6 by a two revolution clutch, Vthe trip arm of which is shown atE0 in this; ligure. 'The shaft l 's connected by a two to one gear l2.lei; with a cam shaft i6 parallel with the shaft and carrying two camblocks i8, 20. The operating tr for tripping the clutchto startl thenine is shown at 2l.

,Y ',j. which shows the base ion o? the machine partly in median:.iection., it w'll l e seen that the forward end oi the shaft l carrf.Y a crank 22 which is ,-ted to a cross-head 2e by a connectreari .ardprojection of 2st when near the lower limit ejes a lniiier spring` 27' ascc the machine traine. The spring absorbs the momenturn of 'the heavydownwardly moving parte and assistg in restorina` there to ther raisedposition.

Yln Fig. 8. which is a s ionat right an? xs to Fig. 8. the eros' head2er is shown as uned to rods 2S. 28 which are guided for up and downreciprocating` movement in trunnion blncls 30, the trunnions 32 of whichare ienrnaled in the machine frame. The trium-ons 32 permit a forwardand backward sx 'ne'. ..1 movement of the rods 28, and crofshead for apurpose to be eX- vnlaincfl. The ni ends. oi' the reds 28. as shown inFin. have f' uxed to them a crossln-.ffid El which carries thelireasting knife of ihc machine indicated at fili. The lnii'e The shaftserthe worm wheels 42 are procontrolled mechanism for operating .chine'the front being to the vided with pinions which engage racks onlaterally movable knife clamping members to move them toward and fromthe knife as inthe prlor construction.

Above the crossehead 84: the rods 28 pass through guides 50. rFhe guides50 have trunnions 52 (Fig. 2) journaled in a yoke 54 which is pivotod at56 to the machine frame and has a rearwardly extending arm 58 connectedby a rod ll() to a lever 62 (Fig. 123). The lever 82 has a likeu pivoton a shaft G4@ at one end and at the other end carries a roll 86 whichengages a cam path in the front face oi"- the cam block 1.8. Movement ofthe yoke upwardly about the pivot 58 by reason of the connections 58,80, 82 to the cam block 18 will slightly shift the position of thelguide 50 rearwardly of the machine, the trunnions 82 permit-ting suchmovement of the guide 5() and rods 28. Rearward movement of the rods 28,of course, carries rearwardly the cross-head 84 and knife 86 so that ifthe knife is reciprocated while the rods` 28 are in forward position andthen the rods are moved rearwardly and the knife reciprocated, a secondchip will be removed by the knife. This chip is preferably very thin,for instance 1/32 or 1/64 of an inch thick. The trunnions 32 are so farbelow the knife that the slight swinging of the rods 28, about them doesnot alter materially the angular direction of the cutting movement ofthe knife.

The mechanism for supporting the shoe will now be described, being bestshown in Figs. 6 and 8. This mechanism comprises a hollow jack postconnected by a universal joint comprising pivots 71, 73 to va lever 72having a fixed pivot on the shaft 64 at one end and at the other endcarrying a cam roll which engages a cam path on the cam block 20. In thejack post 70 is a rod 74 arranged to move freely longitudinally andnormally upheld by a relatively light spring 76 (Fig. 6) connected atone end to the post 70 and at the other to a pin which passes through aslot in the post 70 and is lined in the rod 74. The rod 74 at its lowerend is a pistonfit in a chamber 78 containing a liquid. for eX- ampleoil. and having a lateral passage for the liquid closed by a valve 8O(Fig. 8). Then the valve 80 is open the rod 74 will move freely up anddown to permit the insertionY into the machine of a last of any heightand when the ralve is closed the rod 7tlwill be supported againstdepression to a degree depending upon the force with which the valve isheld to its seat. To hold the valve seated, two springs 82, 8a areproided, the spring 82 acting` directly upon the valve and the spring 84acting upon the upper end of a valve stem 86. The valve stem 8G has ablock 90 pinned to its upper end which, when the post 70 is lowered,engages a projection 92 from the machine frame and causes the valve toopen. When the post 70 is swung to and fro about the pivot 71 the block90 slides on the projection 82 (Fig. 6), the engaged surfaces beinggrooved to prevent lateral pla-y and the upper surface of the projection92 being curved :from 71 as a center. The block 9() passes through anopening in a cyliiider Slwhich has a rearward projection ,riveted at 98to a rearward projection on the post 70 (Fig. Projecting forwardly fromthe cylinder 94e is an arm 97 (Fig. 8) which carries an adjusting screw98 engaging a flat surface 10() formed on a member 101 adjustablysecured to the traine by bolts 102. Within the cylinder 94 is the spring84: which bears on a plate 104%. attached to the block 90 and a screwplug 1.08 bearing on the other end of the spring 84E serves as means foradjusting its tension. lt will be apparent from Fig. 8 that as the lever72 is raised by the cam 20, the jack post 70 will be lifted, raising theblock 90 from the projection 92 and allowing` the valve 80 to be'closedby the relatively light spring 82. As the jack post and rod 7e continueto rise against resistance of means comprising a fixed stop, to bedescribed, for holding the shoe against upward movement relatively tothe knife,

a predetermined pressure upon the shoe is maintained. ldlhen, however,the upper limit of movement of the jack is approached, the screw 98engages the surface 1GO and the tension of the spring 84: is brought tobear upon the valve 80 to inrease the upward pressure on the shoe, thispressure being applied to any last irrespectivelv of its height sincethe last was posi- 'tioned in the machine by depressing the rod 74.1.before closing).- of either of the valves. The combined tension of theAsprings 82 and is preferably such that they hold the valve closed underany usual working conditions and the post is therefore substantiallypositively locked against depression.

After the first cut is made on the heel it is desirable to increase thepressure of the shoe against the stop. This is effected by the formationof the jack raising cam 20 shown at 28 in Fig. 8 comprising a slightchange in the radius of curvature of the cani path Vwhereby when thispoint in the cycle is reached the lever 72 will lie raised slightlyeither before or during the second cut of the knife. The effect of thisis to crowd the shoe harder against the fixed stop and by reason of theresulting increased strain upon the` parts slightly raising the shoe sothat when the knife descends the second time in the cycle it will cutmore deeply than it did upon its first reciprocation. By thisconstruction the machine may be so adjusted that the knife, upon itsrstdescent vinthe cycle, will cut almost through the heel to the shankbutfvnot quite far enough to detachy the chipfromy the heel and so thatafter the `upward ypressure upon the jack is increased the second cutofthe knite will Lcompletely sever both chips from the heel. By thisadjustment all danger of the knife cutting through, the heel andmarkiiug' the shank upon? its iirst operation is obviated. If the knifebe allowed to cuty completely through thef heel upon the first strokethere is danger that theknife edge,`

engages the shank ofthe shoe and is supy ported at times to resist theupward pressure of the jack during the breasting operation and isautomatically movcd'i-)ut` oi' theway after that operation-is completedto permit convenient withdrawal of the shee from the f "the arm 148passes through the slot and is machine and the introduction ofthesucceeding shoe. The stop is mounted to slide verticallyvin a part112.`pivoted jat 114 to the machine' frame. and affording a verticallyrigid support' for'the stop. VBetween the-upper eind of the stop 11()and the post 112 is a wedge member coi'nprising rel-atively` adjustableparts 116, 118 ('Figsx 4 and 5). lA stop 117' (Fig. 4) is providedtolimit movement of the part 116 of the wedge member always to the sameextent, and a-y screw 1202 is provided to vary the relative position ofthe parts 116, 118 and hence to'varythe et! fective thickness of thewedge. wedge is in the position shown in 'Figsg'2 and 4 it' forms arigid abutment for vthe end of the stop 110, being backed up by the part112 which, as stated, is mounted onthel machine frame so as to be rigidagainst upward pressure. these conditions,provides a rigid abutmentagainst whichthe shoe is clamped by the jack for the operation of thevknife 86.' The vertical operative position of the stop 11()v may bevaried by adjusting' the parts 116, 118 of the wedge member bythe screw1 20` so that the shank contacting face of the stop 11() may be made tocorrespond with the lower limit of the knife stroke, the knife beingfirstset in its holder so` thatfits edge will be approximately in theplane ofthe shank eun'agingface of the stop when the knife is at itslower limit of its stroke. 1nk

front of the knife is a member 122 which is clamped in a lined positionin the holderv 34 with the knife, and on the member 122 1s a screw i24having' aV milled nut1126 which WhenE the The stop 110, therefore,under' overlies the upper end ofthe knife and forms an abutment. tovpositionl the knife and help take thezcutting thrust. The nut 126 may beadjustedon-Y the screw 124 to accommodate knivesV of different lengthsand 'the varying lengths ofthe same knife as vit is shortened 1 bygrinding.

Near the end of the cycle of the machine the wedge member 116, v118 iswithdrawnl andthe stop 110 is raised in itsslide to carry A`it above theshoeheel so that the shoe may `be readily withdrawnfromfthe machine.Toelfect this, a-rock shaft j130 is mounted -in an. arm 132extendmgforwardly from the vpart 112. The rock shaft has an arm 134loosely-.connected to the part y1'16 of the wedge member by a pin 136passing through the memberand lying in slots 138 formed in the endof thearm 134 which is bifurcated. Another arm 14() on the ro'ck shaft 130' isConnectedv to one end of a lever 144 fulcrumed at 142 to the machineframe and connected atits oppositeend to an operating rod 146. The rod146 extends downwardly to the base of the machine where it is yieldinglyconnected toan arml 148 (Fig-8). To provide this yielding connection,the lower end of the rod 146l is slotted at 149 and a. pin on connectedby a spring 14( with an adjustable collar 145. on the rod 146. lThe armI 148 extends. laterally from a rock shaft 150 by which the clutchsetting mechanism, to be trip; thel :clutch-.after further movement ofthe wedge member is prevented by engagement of the stop 117 with thepart 112. Depression of the treadle 21 to set the clutch rocksfthevsha-ft 150 in a counter-clockwise direction causing the arm 148 topullon the rod 146-which moves the forward end of the `lever-.144 and!the arm'` 140 upwardly, causingthe arm113`4 to push the wedge member116,v 118-into operative position. `Before the knife returns onits'second reciprocation, the shaft A150 is rocked back to its initialposition andthe wedge is withdrawn to permit the stopf110 to be raisedwith the knife as will be further explaned. The part 118 of the wedgemember has rearwardly extending guides 119 (Fig. 3) which engagetransverse guideways in the part 112 and a space is provided between theguides 119 sutlicient to permitthe stop 110 tobe raised between themwhen the wedge member is in its forward position, its wedge portionbeing then forward of the path of movement of the stop. The looseconnection afforded by the i pin 136 and slots Y 138 permits rectilineartransverse movement of the guides 119 notwithstanding the curvilinearmovement of the end ofthe arm 134'. i

The. mechanism for raising the stop 110 Vwith'the knifev when the knifereturns after the second or finishing cut is as follows. In the rearface of the stop (Fig. 4) is a notch 158 with which the suitably formedforward end of a slide 160 mounted on the knife carrier or cross head 34cooperates to lift the stop. The slide 160, however, must be preventedfrom engaging the notch 158 during the upward movement of the knifeafter the first movement of the knife for removing the thick chip fromthe heel breast, and the slide 160 must be withdrawn after a shoe isinserted in the machine to permit the stop to drop into operativeposition. For this purpose another slide 162 is arranged over the slide160 and between projections on the two slides respectively is a spring164 which moves the slide 160 toward the stop 110 when permitted to doso by the release of a catch 165 on the slide 162 which engages a notchin the slide 160 for retraction of the two slides together by movementof the slide 162 through connection with the jack. This connectioncomprises a rod 166 connected to the slide 162 at one end and at theother to one arm 170 (Figs. 1 and 4) of a bell-crank having a fixedpivot at 168. The other arm 171 of the bell-crank is connected by a rod172 toV one arm 174 (Fig. 6) of a bell-crank having a fixed pivot at 176and having on its other arm 178 a pin 180 lying in a slot 182 formed inthe end of a link 184 which is pivoted to a rearward projection 186 fromthe jack.

In Figs. 2 and 4 the parts are shown in the positions they occupy whenthe machine is just starting to effect the first breasting cut, theknife being about to descend for the first time in the cycle. The slides160, 162 have been retracted while locked together by the catch 165, themovement having been effected by the rearward movement of the jack whichhas caused the forward end of the slot 182 (Fig. 6) to push on the pin180 and through the connection described to pull on the rod 166.Rearward movement of the slide 160 has disengaged its forward end' fromthe lnotch 158 and permitted the stop 110 to drop into engagement withthe shoe, and the wedge member 116, 118 has been inserted above the stopto sustain the pressure of the jack post which has been raised. Duringthe first operation of the knife to remove the first or thick chip fromthe breast the slide 160 is held retracted by the catch 165. When theknife carrier is moved rearwardly prior to the second cut for removingthe thin or finishing chip from the heel by rocking of the lever 58, aprojection 190 (Fig. 2) on the lever engages an upstanding portion 192of the catch 165, causing it to release the slide 160 which isurgedforwardly by the spring 164 into engagement with the stop `110. Duringthesecond descent of the knife the end of the slide 160 is moveddownwardly past the notch 158 and on its return engages the notch andraises the stop 110 out of engagement with the shoe, the wedge member116, 118 having, of course, been withdrawn before the upward movement ofthe knife carri-er occurs by movement of the rock shaft 150 intoposition to throw out the clutch. When the jack is swung outwardly forremoval of the shoe, the inner end of the slot 182 engages the pin 180and through the connections described pushes the slide 162 forwardlyrelatively to the slide 160 until the catch 165 engages the notch in theslide 160, and when the jack is moved rearwardly with the next shoe theforward end of the slot 182 engages the pin 180 and retracts both slidestogether to permit the stop 110 to drop again into operative position.

It is convenient to be able to move the stop 110 and its attendantmechanism from in front of the knife so that the knife may readily beremoved or adjusted. When the forward end of the lever 144 is depressedso that its pivotal connection with the arm 140 is axially in line withthe pivot 114 of the arm 132, the part 112, stop 110, arms 134, 132,etc., will swing outwardly about 114 as a center against a spring 181which is connected between a pin 183 on the frame and the rock shaft130. )When these parts are swung up to the limit of their movement thelongitudinal aXis of the spring lies above the pivot 114 and holds theparts in raised position.

Cooperating with the stop 110 in supporting the shoe is a tread plate200 (Fig. 1) mounted on a frame 201 which is pivoted at 202 to theforward end of a. lever 203 fulcrumed on the machine frame at 204. -Tothe lever 203 between its ends is pivoted a tubular n'iember 206 towhich is connected an operating rod 208 which telescopes into it and hasa slot in its lower end portion which engages a pin 209 (Fig. 13) on acam operated lever 210 fulcrumed at 64 and having at its opposite end acam roll 212 engaging a cam path 214 in the rear face of the cam block18. A spring 216 is connected between the pin 209 and an adjustableblock 218 (Fig. 6) clamped to the rod 208 and acts to hold the pinnormally against the upper end of the slot. As the machine starts, thecam roll 212 is moved toward the center 16 of the cam block (Fig. 3)depressing the lever 210 and pulling downwardly upon the rod 208 throughthe spring 216, yielding pressure being thereby applied to the treadplate 200 to a degree depending upon the tension of the spring 216. Tovary the initial position of the tread plate 200-so that heels ofvarying heights may be positioned beneath it. mechanism vbest shown inFig. 8

is provided. The operating rod 208 is provided on the portion which liesin the tubular member 206 with ratchet teeth 220 which are lon engagedby'similar teeth formed on a pawl block 222 mounted in the member 206and held toward the rod 208 by a spring,` 22e. The block may be releasedfrom the teeth 220 by pulling, on a handle 226 and when so releasedthemember 206 is moved upwardly relatively to the rod 208 by a spring122S. To set the plate tor al heel higher than that tor which the heelhas been previously used, the block 222 is released7 allowing the treadplate 200 to rise to the limit ot its movement, the heel is thenpositioned beneath the plate, and the plate depressed against the heel,the pawl block 222 sliding` downwardly over the ratchet teeth 220 andadjusting' the length of the operatiif'e rod 206 and member 206 to thenew height of heel, no further adjustment of the plate being,v necessaryuntil heels of a substantially ditl'erent height are to be operatedupon. To adjust the plate for heels lower than those previouslybreasted, it is oit course necessary only to depress the plate intoContact with the heel alter the shoe has been introduced beneath it.

(.)n the lower 'face ol5 the plate 200 are arrai'iged shoepositioning`lingers 230 (Figs. 9, 10 and 11) by which the forward and lateralpositions ot the heel are determined. The lingers 2530 are vpivoted at232 to a slide 2234 mounted in the frame 201 and are connected at 236 byinterengaging toothed segments 'for equal and opposite movement. Thelingers are urged toward each other b-y a spring` 237. (ln the slide 234(Fig. 10) an upstanding, lug" 236 havingu threaded engagement with athreaded tube 240. The rear end of the tube carries a llange 242 `guidedin a housing 244 on the frame 201. The rear end oli the housing isclosed by a screw plug 2117 against which a spring- 246 located in thetube 241.0 abuts. By turning the tube 24:0 the slide 2811 and fingers230 may be adjusted longitudinally ot the shoe and the slide andlinggersy may be moved rearwardly against the spring 246. Forconvenience in turning the tube 21h), a thumb head 24S is provided on alaterally extending rod 250 rotatably mounted in the iframe 201 andcarrying' a. spiral gear 252 which meshes with a; similar gear 253 onthe tube 2410. The lingers 230 have hooked ends which engage the breastkedge ot the top lift and position the shoe longitudinally relatively tothe knife, and the thumb head 2118 and connected mechanism atl'ord meanstor adjusting the lingers longitudinally ot the shoe to vary the amountot material removed by the lirst cut of the knife. Y

Before the descent oit the knife it is necessary to separate thev hookedends oit the lingers 230 to release Vthem trom the heel and then toretract them from the path ot the knife. To `elii'ect this, wedgemembers 254 are provided which engage inclined faces on the inner edgesof the lingers.

The wedge members 25d are threaded to a right and lett hand .screw 256which is rotatably mounted on upstanding brackets between which isrotatably mounted on the screw 256 a depending T-shaped mem ber 260 thelateral projections ot which en gage the wedge members 2511 and swingtheni rearn'ardly as best shown in Fig. 11. nu adjusting` screw 261 isthreaded through the member 260 and'is connected to the gear 253 by aconnection such that the screw 256 will be rotated with the tube 2li).rranged to press rearwardly on the syrew 261 is any arm 262 on a rockshaft 26% mounted in upstanding,` brackets 266 and having' an operating'arri link to an arm 270 on a` rock shat't 272. Another arm 275i on therock shalt 272 is connected` by a rod 276 to a rearwardly extendingbracket 27 S on the lever 210 (Fig. 12),' the lower end ot the rod 276beineT slotted (Fig.` 13) to provide a lost motion connection with thelever. ln'unediately alter the machine starts and before the kniferoaches the lingers 230. the lever 2l0 exerts a pull on the rod 276 andthrough the connections described swings the arm 262 rearwardly againstthe screw 2617 movinn' the T-shaped member 260 against the wedge members254-v which act' on the inclined 'Faces ou the lingers first lo separatethe lingers against thc spring' 287. .iirlter separation ot' the lingersto tree. their hooked ends :troni the heel breast, lugs 257 on themembers 254` engage faces on the lingers 230 which are perpendicular tothe longitudinal axis ot the shoe and n'iove the lingers togetherrearwardly against the spring,V 246 beyond the plane of operation ot.'the lniite.` Rotation ot' the tube 240 to adjust the fingerlongitudinally ot the shoe also 'turns the screw 261 through theconnection 263 and correspondingly adjusts the lif-shaped member 260 andwedge members to maintain their relation to the inclined tacos ot thelingers constant.

The lingers should remain in open and retracted position until the shoeis removed from the machine and accordingly a latch is provided to holdthe rod 276 depressed until the jack is swung outwardly. llel'erringtoflligs. 1, 6 and 7, it will be seen that the rod 276 carries a block280 adjustably clamped to it. A. latch 262 is pivotcd to the arm 17 8 toswing torwardly against a spring 284 but not rearwardly beyond theposition shown in Fig. 6, where the latch is in engagement with the topface of the block 280 and is holding the rod 276 depressed and thelingers retracted. When the jack is drawn forward for removal of theshoe, the connection 184- pulls the arm 176 forwardly and mores thelatch 282 oliI ot the block 280 perinitting the rod 276to rise inresponse to the spring` 24:6 which mores the lingers for- 266 connected(Fig. 1) by a' Til wardly for their work positioning function. When thejack is moved.. rearwardly with the next shoe the latch 282 hits theside ot the block 280 and stops while vthe arm 178 continues to swingrearwardly, tensioning the spring 284. Vilhen the rod 276 is againdepressed the latch 282 snaps over the block 280 and holds the rod downuntil the jack is moved 'torwardly again.

On the shaft 4 (Fig. 13) is the disk 300 ot a Horton clutch, from overthe stop lug 302 ot' which a lateral projection 303 (Fig. 12) of thestop arm 10 has just been removed to permit the clutch to take hold andstart the machine. The lateral projection 303 carries the usual springmember 304 to engage the lug 302 and lessen the shock oi stopping. Thearm 10 is iiXed to the rockshaitt 150 and is urged toward the clutchdisk by a spring 306. Mounted loosely on the shaft 150 is a member 308having an arm 310 which may be raised, by an underlying projection 312ot the treadle 21. To the member 308 above the sha'iit 150 is pi'votedat 314 an angular member cour prising a dog 316 and an arm 318. VFixedto the shaft 150 by a clamp screw 320 is a member 322 which carries anotched plate 324 the notch oi' which is engaged by the dog 316 when thearm 310 is raised by the treadle and causes rotation oft' the shaft 150to move the arm 10 away trom the clutch disk 300. The shalt 150 also hasfixed to it by a clamp screw 326 a member 328 which carries a brake shoe330 having a rocking bearing at 332 thereon and having its up` per endurged toward upward projection 334 on the member 328 by a spring 336.The parts are so arranged that rocking ot the shaft 1.50 and the member328 will release the brake shoe from the edge of the cam block 18. lThen'ien'iber 328 has an arm 340 extending` to the right (Fig. 12) andcarrying a screw 342 which is engaged by an underlying lug 3114 on thelever 62 so that while the lever 62 is held raised by its cam it isimpossible for the shaft 150 to rock back into stopping position or forthe brake 330 to be applied. After the lug 302 has passed the stopprojection 303 on its second revolution a projection 346 litts the arm318 ot the dog 316 disengaging it from the notched plate 324 andallowing the rock shaft 150 to rock under the influence ot the spring306 and carry the stop arm 10 into clutch releasing position whenpermitted to do so by the cam controlled movement of the lever 62. Thebrake 330 is also carried into operative position but is not completelyset until a certain portion 348 ot the periphery ot the cam block 18reaches the brake at the end of its revolution, the cam being somewhateccentric and this portion being 'farthest from the center to bind onthe brake and stop the machine. The clockwise rocking movement of theshaft 150 takes place early enough in the cyc-le to cause the arm 148 tooperate through the rod 146 to remove the wedge member 116, 118 fromover the stop 110 and permit it to be raised by the second upwardmovement or the cross-head 311- at the end of the cycle.

1n the operation of the machine, the shoe support being swung outwardlyabout the pivot 71, the operator places a shoe upon the shoe support,the toe being upheld by the usual toe rest, as shown, it desired. Hethen swings the shoe and support toward the machine at the same timeslightly depressing the post 74 and shoe against the light spring- 76 tobring the top lift below the plane et' the hooked ends of the lingers230 beneath the tread plate 201. Vhen the heel is under the plate andbetween the iingers, the shoe is released and raised by the spring 76against the plate. It is then drawn Yforward until the top lift engagesthe fingers 230 and the heel is positioned tnereby in proper relation tothe knife. As the shoe rest approaches its inner position the latch 160is withdrawn through the connections 166, 170, 172, 174, 178, 184, 186,as described, and the stop 110 drops into contact with the shoe shank.

The operator next depresses the treadle 21 which rocks the shait 150 andswings downwardly the outer end oi' the arm 148 which through theconnections 146, 144, 130, 134 moves the wedge member 116 into positionabove the stop 110 to hold it against upward movement as the jack israised. Further movement of the treadle trips the clutch and theshatts 4and 16 begin to rotate. The cam 20 on the shaft 16 operates the lever 72to litt the jack irst yieldingly as the liquid passes through the valve80 held by the relatively lighttension oit the spring 82 and finallylifts the jack substantially positively as the screw 98 engages thesurfaceV 100 and the tension of the spring 84 becomes eii'ective withthat ot the spring 82 to hold the valve 80 closed. The knife has begunits descent but before it reaches the ingers 230 they are withdrawn inthe manner described by a pull on the rod 276 effected by the cam pathon the rear face oi the cam block 18 through the lever 210 and arelocked in retracted position by the latch 282 which engages above theblock 280 (Fig. 6). The knife now passes through the heel substantiallto the shank practically severing a thick chip from the heel, the wedgemember 116 and knite'adjusting screw 124 having. oi course, been lirstadjusted to produce this effect. The knife now returns and immediatelybegins a second descent. In the meantime Yhe lever 62 is operated by itscam path 68 onl the cam block 18 and pulls downwardly on the rod 60.This movement Cil moves the upper guides of the sliding rods 28, 28toward the rear, the lower guides 30 rocking on 'the trunnions 32.During this movement of he arm 38 the projection 190 has engaged thetail 192 of the catch IGS and releaserfi the .slide i which movesforward against the stop 110. The knife upon its eeond descent removes athin shaving from the heel and the pressure of the shoe upon the stopil@ having been increased by the movement of the lever T2 effected bythe formation 28 en the cam path in the cam block 20, the knife crus alittle dee]L er on the second cut than on the first and severs cleanlythe chips from the heel. Before the knife starts to return, the rockshaft 150 is permitted to turn to bring the stop l0 in position to throwout the chitch and also to move the arm to retract the wedge member 11G,118 from above the stop 110 which upon the return of the knife carrieris picked up by the slide 160 and is raised out of the way of the shoe.At the same time the jack is lowered. rIhe machine now stops and theshoe is free to be swung outwardly away from the machine. As the shoe isswung away from the machine for removal the end of the slot 182 strikesthe pin ISO, removing the catch 282 from above the block 280 therebypermitting the positioning fingers 230 to more forward and close readyto position the top lift of the next heel.

Having fully described my invention, I claim as new and desire to secureby United States Letters Patent:

l. In a machine of the class described, means for supporting a heel tobe breasted., and means acting in the direction of the height of theheel for first removing from the breast of the heel a roughing chip andpower driven means operating to effect a finishing cut, said means beingconstructed and arranged to eliminate from the entire heel breast anyroughness resulting from the removal of the roughing chip.

2. In a machine of the class described, means for holding in fixedposition a shoe heel to be breasted, means acting in the direction ofthe height of Vthe heel for brcasting the heel, and automatic means formaking a similar and finishing cut on the breasted heel.

3. In a machine of the class described, means for holding in fixedposition a shoe having a heel. to be breasted, means for breasting theheel in a direction from the tread face of the heel toward th(` shank,and means for automaticallyY repeating the breast ing operation onsubstantially the entire heel breast face.

4;. In a machine `of the class described, means for supporting a shoe,means including a knife and means for operating the knife in thedirection of the height of the heel of the shoe for breasting the heel,means for relatively moving the shoe and breasting means in thedirection of the length of the shoe, and means for again operating thebreasting means.

5. In a power operated breasting machine arranged to performautomatically its'cycle and stop, a heel support, a breasting knifeacting` in the direction of the height of the heel, means for operatingthe knife to breast the heel, means for moving relatively the heel andknife in the direction of the length of the heel a predetermineddistance, and means for operating the knife a second time in the samecycle.

6. In an automatic machine constructed and arranged to perform its cycleand stop, a breasting knife, means for operating the knife in thedirection of the height of a heel twice in the same cycle, a heelsupport, and means for relatively moving the knife and heel supportafter the first operation of the knife and before its second operation.

7. In an automatic machiner constructed and arranged to perform itscycleand stop, a support for holding the heel in fixed position, a breastingknife,-means for operating the knife in the direction of the height ofthe heel twice in the same cycle, and means for moving the knife towardthe rear of the heel after the first operation of the knife and beforethe second operation.

8. In a heel breasting machine, a shoe support constructed and arrangedto hold the shoe in position for the breasting operation, a knifearranged to operate in a direction from the tread face of the heeltoward the shoe, means for operating the knife first to remove a chipfrom the heel, means for shifting the knife and shoe relatively in thedirection of the length of the heel, means for operating the knife asecond time, and means for stopping the machine after the secondoperation of the knife.

9. In a heel breasting machine, a shoe support constructed and arrangedto hold the shoe in position for the breasting operation, a knifearranged to operate in a direction from the tread face of the heeltoward the shank, and means for operating the knife automatically firstto remove from the breast of the heel a roughing chip and then operatingthe knife to remove a finishing chip.

10. In a heei breasting machine, a shoe support constructed and arrangedto hold the shoe in position for the breastmg operation, a knifearranged to operate in a direction from the tread face of the heeltoward the shank, means for operating the knife to remove a thick chipfrom the heel, and means for relatively moving the shoe and knife andfor then operating the knife to remove a thin chip from the heel.

11. In a heel breasting machine, a shoe support constructed and arrangedto hold a shoe in position for the breasting operation,

IHS

iii)

Va knife arranged to operate in a direction from the tread face of theheel toward the shank, means constructed and arranged To give the knifetwo reciprocations and stop, and means for moving the knife apredetermined distance toward the rear of the heel between itsreciprocations.

12. In a machine of the class described, a vertically fixed stop, poweroperated means for raising the shoe against the stop at first withyielding pressure and then with substantially positive pressure, andmeans for breasting the heel of the shoe while thus held positivelysupported.

13. In a machine of the class described, a fixed stop, a plurality ofsprings, power operated means for raising the shoe against the stopfirst with a pressure controlled by one of the springs, and then. with apressure controlled by both of said springs, the joint action of saidsprings being` such as to hold the shoe substantially rigidly againstthe stop, and means for breasting the heel of the shoe whileso held.

14. In a machine of the class described, a fixed stop, a relativelylight spring and a relatively heavy spring, pon er operated means forpressing the shoe against the stop first through the agency of the lightspring, means for renc'lering the heavy spring effective to reinforcethe light spring when the shoe is in clamped position against the stop,and means for breasting the heel of the shoe so held.

15. In a heel breasting machine, 'a shoe support, a breast-ing knife, atread plate for engaging the tread face` of the heel, power operatedmeans for yieldingly pressing the plate against the heel, andconnections from the power operated means to the plate comprising aratchet and pawl which permit the plate to be dispressed into contactwith a low heel and constructed and arranged to maintain this adjustmentduring repeated operating cycles of the machine, the pawl being`releasable for adjustment of the plate to a high heel.

16. In a heel breasting machine, a shoe support, a breasting knife, atread plate, means for operating the pla-te to force it against the heelincluding a ratchet and pawl adjustment which is maintained duringsuccessive cycles of the machine, and resilient means for raising` theplate when the pawl is manually released.

17. In a heel hreasting machine, a shoe support, a reciprocating crosshea-d, a knife on said cross head arranged to breast the heel of a shoeon said support, and means to check the momentum of the cross head onlywhen near the lower limit of its stroke and to accelerate its movementduring the first part of its upward stroke.

18. ln a machine of the class described.

the combination of a knife having a fixed imit of recijn'ocation, a shoesupport movable toward and from he machine, a vertically movable shankstop, means permitting movement of the stop into position to locate theshoe shank at the limit of the knife stroke after the shoe is moved intoopcrative position, means for holdingthe stop against vertical movementduring the breasting operation, and means for moving the stop away fromthe shoe to permit withdrawal of the support and shoe from the machine.

19. ln a machine of the class described, the combination of a knifehaving ay fixed limit of reciprocating movement, a shoe support movabletoward and from the machine, a vertically movable shank stop, meansoperated by movement of the shoe support for permitting the stop to dropupon the shoe shank, means operated by the starting treadle forpreventing the stop from being raised beyond the point where its shoeengaging face is at the limit of the knife stroke, means operating whenthe machine starts for raising the shoe against the stop, and means forthen operating the knife to breast the heel.

20. ln a machine'of the class described, a

knife having a stroke the lower limit of which is constant, shoesupporting` means movable toward and from operative position under theknife, a vertically movable shank stop normally out of the way ofintroduction of the shoe in the machine, and automatic means forpositioning the stop and holding the shoe against the stop with the faceof its shank at the limit of the knife stroke.

2l. ln a breasting machine, a knife having a two stroke cycle, a shoesupport movable toward and from the machine, a vertically movable stopnormally raised to permit introduction of the shoe into the machine.means operating before the beginning of the first stroke for permittingmovement of the stop into operative position, means for holdingthe stopagainst vertical movement, means for pressing the shoe against the stop,and means operating during the second stroke of the knife for releasingthe holding means and raising the stop out of contact with the shoe. i

2i', ln a heel breasting machine, the combination of a reciprocatingknife, shoe supporting means movable towardv and from the knife andmovable into and out of position beneath the knife. a breasting stopmovable in the same direction as the knife from a position above theshoe, where it will clear the heel in its movement on the support intoposition beneath the knife, to a position against the shank of the shoe,means to limit return movement of the stop to locate the shank at apredetermined height relatively to the limit of the knife stroke andmeans for raising the shoe lsupport to clamp the shoe against the stopwhen the stop is in its limited position.

23. ln a machine of the class described, a reciprocating breastingknife, a stop arranged to drop upon the shoe after its insertion intothe machine, means for holding the stop against upward movement, meansfor raising the shoe against the stop, and means for thereafteroperating the knife to breast the heel.

24. ln a machine of the class described, a reciprocating breastingknife, a stop arranged to drop upon the shoe after its insertion in themachine, means for holding .Y

the stop against upward movement, means for raising the shoe against thestop, means for thereafter operating the knife to breast the heel, andmeans operated by the knife for removing the stop from the shoe afterthe breasting operation.

In a heel breasting machine, the combination of breasting means, a worksupport movable toward and from the machine and vertically, a stop,automatic means for causing the stop to be brought into contact with theshoe after the support is moved toward the machine, and means for sup`porting the stop against movement while the shoe is moved verticallyagainst it and for moving` the stop out of the path of the shoe beforethe supporting means is withdrawn.

26. ln a. heel breasting machine, a shoe i support constructed andarranged to hold the shoe in position for the breasting oper tion, aknife arranged to operate in a directionufrom the tread face of the heeltoward the shank, means for operating the knife to remove one chip `fromtheheel, means for relatively moving the shoe and knife, and means forthereafter operating the knife to remove another chip from the heel.

27. In a breasting machine, a shoe snpport constructed and arranged tohold the shoe in position for the breasting operation, a knife arrangedto operate in a direction from the tread face of the heel toward theshank, means constructed and arranged to give the knife a plurality ofreciprocations, and automatic means for moving relatively the shoe andknife a predetermined distance between reciprocations of the knife.

28. ln a machine of the class described, a vertically xed stop, meansfor raising the shoe against the stop at lirst Vwith yielding pressureand then with substantially positive pressure, means for breasi'ing theheel of the shoe while thns held by the support, means for movingrelatively the breasting means and the heel longitudinally of the heel,means for increasing the pressure of the shoe against the stop, andmeans for repeating the breasting operation upon the heel.

29. In a machine of the class described, the combination of a knifehaving a fixed limit of reciprocation, a shoe support movable toward andfrom the machine and also movableV vertically, a vertically movableshank stop, means for positioning the stop to locate the shoe shank atthe limit of the knife stroke after the shoe is moved on its supportinto operative position, means for raising the support to clamp the shoeagainst the stop, and means for moving the stop away from the shoe topermit withdrawal of the support and the shoe from the machine.k

80. In a machine of the class described, the combination of a knifehaving a fixed limit of reciprocating movement, a shoe support movabletoward and from the machine and vertically, a vertically movable shankstop, means operated by movement of the shoe support for permitting thestop to drop upon the shoe shank, a treadle, means operated by thetreadle for preventing the stop from being raised beyond the point whereits shoe engaging face is at the limit of the knife stroke, poweroperated means for raising the shoe against the stop, means foroperating the knife to breast the heel, means for moving relatively theknife and heel in the direction of the length of the heel, means forincreasingl the pressure of the shoe against the stop, and means foragain oper ating the knife to remove a second chip from the heel.

3l. ln a machine of the class described, the combination of a knifehaving a fixed limit of reciprocating movement, a shoesupport movabletoward and from the machine and vertically, a vertically movable shankstop, means operated by movement of the shoe support for permitting thestop to drop upon the shoe shank, a treadle, means operated by thetreadle for preventingthe stop from being raised beyond the point whereits shoe engaging face is at the limit of the knife stroke, poweroperated means for raising the shoe against the stop, means for operating the knife to breast the heel, means for moving relatively the knifeand heel in the direction of the length of the heel, and. means foragain operating` the knife to remove a second chip from the heel.

32. A heel breasting machine comi'irising a reciprocating knife having astroke the lower limit of which is constant, a work support movable toand from alignment with the knife and movable toward and. from the knifein alignment therewith a stop for the shoe movable in the same directionas the knife into and out of oper-- ative position, and automatic meansfor locating` and holding the stop against inovement during thebreasting operation at such a point that the shank of the shoe will beat the limit of reciprocation of the knife,v

335A heel breasting machine comprising a reciprocating knife, a worksupport movable to and from alignment with the knife and movable towardand from the knife in alignment therewith, a stop for the shoe movablein the same direction as the knife into and out of operative position,and antomatic means independent of the slice for limiting movement ofthe stop the support moved toward the knife at a point where the shankof the shoe is at the limit of reciprocation of the knife.

Sel. ik Vheel breasting machine comprising a recipronting knife having astroke the lower limit of which is constant, a work support movable toand from alignment with the knife and movable toward and from the knifewhen in alignment therewith, a stop for the shoe movable in the samedirection as the knife into and out of operative position, and means forpositively holding the stop against movement during operation l of theknife.

35. A heel breasting machine comprising a breasting` knife, means forimparting euttingl movements thereto, a shoe support movable toward theknife and in the direction opposed to the knifes cutting movement, and astop arranged to engage the shoe shank for arresting the shoe todetermine the depth of cut, said stop being moved automatically towardand from operative position in the same direction as the knife andindependently of the shoe.

3G. A heel breasting machine comprising` a reciprocating knife, a worksupport movable toward and from the knife, a stop movable in thedirec-tion of the knife, and means movable into position above the stopto render the stop fixed during the operation of the knife for arrestingmovement of the work toward the knife.

87. A heel breasting machine comprising a reciprocating cutting` knife,a work snpport movable toward and from the knife, a stop immovableduring operation of the knife for limiting movement of the work towardthe knife, and means for moving the stop in the direction of knifemovementafter the operation of the knife and before movement of theshoe.

38. A heel breasting machine comprising a` reciprocating cutting knife,a work support movable toward and from the knife, a stop n'lovableautomatically into the path of the work for arresting movement of thework toward the knife, said stop remaining in engagement with the workthroughout the operation of the knife, and means for moving thestop outof the way of the work after operation of the knife and before movementof the work.

89. ln a heel breasting machine, a knife having a constant stroke, meansincluding a tread plate for clamping a shoe with its shank at the limitof the knife stroke, means on the tread plate for engaging the cornersof the heel breast to determine the longitudinal position of the shoeheel relatively to the knife, and automatic means for operating theknife and clamping means and for withdrawing` the positioning` meansfrom engagement with the heel.

40. A heel breasting machine having, iu combination, a breasting knifehaving a cutting stroke to a fixed point toward which the shoe isuplifted, automatic means for positioning and clamping the shoe with itsshank at said fixed point, and automatic means for operating the knife aplurality of times to remove successive chips from the heel.

4:1. ln an automatic heel breasting machine constructed and arranged tocomplete its cycle and stop, a breast-ing knife, means for operating theknife twice in the cycle, a shoe support, means for relatively movingthe knife and shoe support after the first operation of the knife andbefore its second operation, and means for raising the support betweenthe operations of the knife.

42. In a heel breasting machine, a shoe support constructed and arrangedto hold the shoe clamped for the breasting operation, a knife arrangedto operate in a direction from the tread face of the heel toward theshank of the shoe, means for causing the knife to operate a plurality oftimes and stop, and means for moving the knife rearwardly of the shoebetween its operations.

43. In a heel breasting machine, a shoe support constructed and arrangedto hold the shoe clamped for the breasting operation, a knife arrangedto operate in a direction from the tread face of the heel toward theshank of the shoe, means for causing the knife to operate a plurality oftimes and stop, and means for increasing` the clamping pressure on theVshoe between operations of the knife.

44. In a machine of the class described, a heel support, a reciprocatingbreasting knife arranged to act in the direction of the height of theheel, and automatic fo reciprocating the knife and for moving i lativelythe knife and support to cause the knife first to remove a rougliing cutand then a. finishing cut from the heel breast.

45. ln a machine of the class described, the combination of areciprocating breasting knife, acting from the tread fare ef the heeltoward the shank of the shoe, means vfor positioning the shoe shank atthe limit of the knife stroke, means for pressing the shoe upwardlyagainst the positioning means, and automatic means for increasing thepressure after one operation of the knife to cause the second cut to bemade deeper than 'the first out.

46. A knife having a fixed limit of recip- -rocation, a shoe supportmovable toward of the knife stroke, means `for elevating the shoesupport, and ineans for locking the support against movement in responseto the thrust of the knife during its operation.

117. heel breasting machine comprising a knife and a shoe supportmovable toward and from each other, said shoe support being otherwisemovable to and .from alignment with the knife` a stop movable in thedirection in which the knife and support move toward and from eachother, means controlled by the movement of the shoe support to and fromalignment with the knife for causing the stop to be brought into contactwith the shoe, means for holding the stop against upward movement, andmeans for elevatin the shoe support to press the shoe against the stop.

48. In a heel 'breasting machine, a reciprocating knife, a shank stopagainst which the shoe is held immovable during operation of the knifeupon a heel, means for operating the knife, and means for moving theknife relatively to the heel after the first breast-ing operation sothat upon a second operation of the knife a second out will be made uponthe heel.

49. ln a heel breasting machine, a reciprocating knife, a shank stop forpositioning a shoe shank at the limit of the knife stroke, means foroperating the knife to breast the heel of the shoe, and means for movingrelatively the knife and the shoe to cause the knife upon a secondoperation to make a second cut upon ythe heel.

5l). ln a heel breasting machine, means for positioning and holding ashoe, a knife constructed and arranged to mit i'foinpletely across theentire breast face of the heel of the shoe, and means for movingrelatively the shoe holding means and the knife to cause the knife upona second operation to make another complete cut upon the breast of theheel.

5l. In a heel breasting machine. a recipro eating knife, a support forholding a heel with one of its flat faces substantially perpendicular tothe direction of reciprocation of the knife, means for operating theknife to cut a chip from another flat face of the heel, and meanswhereby the operation of the knife on said second face may be repeated.

52. In a heel breasting machine, the combination of 'breastin means, ashoe support movable toward and from the machine, a shank stop, meansfor causing the stop to be brought into contact with the shank of theshoe upon movement of the support toward the machine, and means formoving the stop out of the way of the shoe before the shoe is withdrawnfrom the machine.

53. In a machine of the class. described,

the combination of a breasting knife, means for positioning the shoerelatively to the knife comprising fingers arranged at each side of theheel and having formations to engage the front edges of the heel anddetermine its longitudinal position, and means operating during thedescent of the knife and independently thereof to separate the fingersfor the passage of the knife 'between them.

54. ln a machine of the class described, the combination of a breastingknife, means for positioning` the shoe relatively of the knifecomprising fingers having hooked ends arranged to embrace the heel andto determine by contact of their hooked ends with the heel breast thelongitudinal position of the shoe, and operating means independent ofthe means for operating the knife for first separating the fingers andthen retractiiig the fingers out of the path of the knife to permit theknife to pass between them. l f

A heel breasting' machine comprising a reciprocating knife havingl afixed limit of movement toward the shoe, a shoe support movable in thedirection of the movement ofthe knife and movable into and out ofoperative position beneath the knife, a stop movable toward and from theshoe in the direction of movement of the knife a sufficient distance toclear the heel of a shoe on the support' when moved into operativeposition, means for raising the shoe support, and means for causing thestop to arrest the shoe with its shank at the limit of the knife strokeduring the operation of the knife.

A heel breasting machine comprising a reciprocating knife. the lowerlimit of movement of which is constant, a. work support movable towardand from position under the knife and movable in the direction of theknife movement, a stop movable to ward and from the shoe in thedirection of movement of the knife, power means for raising the shoesupport, and automatic means for causing the stop to arrest the shoewith the shank at the limit of the knife stroke' until operation of theknife has been completed and then withdrawing the stop out of the way ofthe shoe heel to permit movement of the support from beneath the knife.y

57. A' heel breasting machine comprising a reciprocating knife having a.fixed limit of movement toward the shoe, a shoe sup-

